Locomotive



3 Sheets-Sheet 1 LOCOMOTIVE FRAME J. E. MUHLFELD Filed June 30, 1924 May31. 1921.

May 31, 1927.

J. E. MUHLFELD Locomomvm FRAME Filed June 30. 1924 s Sheets-Sheet 2lNVENTOR Johz Z. Mzzfil 8/;

M ATTORNEY LGBQQOE S Sheets-Sheet 3 INVENTOR 10622 infill/ ed BYf' $7 1jam J. E.' MUHLFELD May 31, 1927.

LOCOMOTIYE FRAME Filed June 50, 1924 ill Patented May El, 1927.

PATENT JOHN E. MUHLFELD, OF SCARSDALE, NEW YORK.

LOCOMDTIVE FRAME.

' Application filed June 30,

rigidly secured to the rear frames of the locomotive and of suchconstruction that the engine cylinders may be separately orindependently secured upon and removed from the opposite sides of'saidfront frame.

It isthe primary object and purposeof my present improvement to providesuch a front, frame for locomotives as above characterized whereby, inthe event 'of failure of either of the engine cylinders, it can beeasily and quickly detached and removed from said frame withoutdisturbing the connected relationship of the other cylinder with theframe or the connections between said frame and locomotive rear framesand the locomotive smokebox.

in one embodiment ofmy invention I pro; vide the front frame at itsupper end with an integral smokebox saddle structurally independently ofthe cylinders so that when either of said cylinders is removed from itsconnection with the frame, the fastening bolts fixing the saddle to theboiler or smokebox wall need not be disturbed. In addition, I provide mynew front frame with a forwardly extending integral bumper supportingbeam, and a guide for the center pin of the frame of the forward or ponytruck of the locomotive. 7

It is another detail object of'the invention to provide simple andeffective means for relieving the .bolts'securing the cylinders to vopposite sides of the front frame of shearing strains and to providemeans for properly aligning the cylinders with the front frame.

With the above and other objects in view, the invention consists in theimproved locomotive frame and in the form, proportion and relativearrangements of its several structural features as will be hereinaftermore fully described, illustrated in'the accompanying drawings andsubsequently incorporated in the subjoined claims.

In the drawingswhere n I have illustrated one preferable practicalembodiment of the invention and in which similar refer-' ence charactersdesignate corresponding parts throughout the several views:

Figure 1 is a SlClB'GlQVdUOll of my 1m- 1924. Serial No. 723,098.

proved locomotive front frame, showing the same attached to the forwardends of the rear frame;

Figure 2 is a plan view;

Figure 3 is a fragmentary side elevation of the frame the cylinder beingremoved; and

Figure 4C is a transverse section taken on the line l% of Figure 1.

In the ordinary locomotive front frame as heretofore used in the art towhich the cylinders are bolted and supported, each of the cylinders isformed with one-half of a saddle plate which are bolted together andalso bolted to the underside of the boiler wall. Such old and well knownconstruction is illustrated for instance in the U. S.

patents to Vauclain, No. 1,076,336 of October 21, 1913, and to Scoville,No. 1,172,841, of February 22nd, 1916. It is'obvious that in the eventof failure of either cylinder or the steam chest associated therewith,it becomes necessary'to remove a large number of bolts connecting thehalf saddle plates with each other and withthe boiler or smokebox aswell as the bolts securing the cylinder to the front frame and the boltconnections be tween the front and side frames or other structural partsof the locomotive before the failed'cylinder can be removed and a newcylinder applied and secured in position upon the front frame.

It is the purpose of my present invention to provide means whereby thenecessity of removing alarge number of bolts will be obviatedand whichwill enable either cylinder to be expeditiously removed by simplyremoving. only the securing bolts whereby said cylinder is fixed to thefront frame and without disturbing the bolting between the boiler, orsmokebox wall and the supporting saddle therefor or between any otherparts.

To the above end, as illustrated in't-he accompanying drawings, in oneembodiment of the invention 1 provide the locomotive front frameintheform of a casting includin an intermediatebod )ortion ,5 which I a isofgeneral rectangular form having side walls 6 and end walls 7 connectedand reinforced by anumber-of horizontal webs 8. It will be understood,however that the specific structural features of this body portion ofthe frame are not essential and might be variously modified asrequiredin order pressure or single expansion cylinder might to permitof the adaptation and use of my invention in connection with differenttypes of locomotives. However, in every case, the front frame section towhich the cylinders are bolted includes forwardly and rearwardlydisposed extensions and abumper beam 9 extending forwardly from the body5 of the frame, said beam being provided with a vertical guide openingindicated at 10 for the center pin of the pony truck frame and members11 extending rearwardly from the frame body 5 which may be connected attheir ends and at the upper edges thereof by a transverse web 12. In oneembodimentof my invention these members 11 are adapted frame casting arerigidly secured to the longitudinal side frames by a large number ofbolts 15. Preferably, the frame members are provided with lugs indicatedat 16, seating in recesses 17 in the frame whereby the bolts 15 are releved of shearing St-I'iLlIlS.

Other arrangements of the connection between the front and rear framesmay be provided.

'Upon the opposite sides of the body portion5 of the frame, the enginecylinders aremounted. As herein shown preferably, each cylinder 18 andits steam chest 19is in the form of a one-piece integral casting1provided. on its inner side with attac flanges 20, said flanges beingpreferably recessed as at 21 to receive the lugs 22 on the side wallsof. the frame body. These lugs afford a convenient means for accuratelypositioningv the cylinder castings upon the sides of the supportingframe and in position whereby the securing bolts indicated at 23, may beinserted throughthe coinciding openings in the flanges 20 and the wallsof the frame body 5. Thus it will be understood that the individualcylinders with the associated steam chest and pipe connections areindependently secured and supported by the bolts 23 on'opposite sidesofthe' front frames.-

In the present instance, I have shown a hi h pressure cylinder on theright hand side of {the front frame and a low pressure cylinder on theleft hand side thereof. It will be understood, however, that a high besubstituted for the low pressure cylinder, oran other 'well' known typeof locomotive cylin ers employed. However, since my improved front framestructure, as herein described and claimed, has been actually used 7 andtested in connection with such a high powered consolidated locomotiveconstruct-' ed. for the Delaware & Hudson Company and exhibited to theofficers and directors ing' - stantial front framestructure is required.

In the locomotive of this new type, the

superheater as well as the direct pressure steam supply pipe connectionwith the high pressure cylinder and the receiver pipe connection betweenthe hi h and low pressure cylinders, are arraugec exteriorly oftheboiler or smokebox. In the drawing I have illustrated the superheatersteam supply connection with the steam chest 19 of the highpressurecylinder at 24. 25 designates the outlet or exhaust from this steamchest which is connected by a receiver ipe extending over the smokeboxwith t e inlet connection 26 to the steam chest of the low pressurecylinder 18. The exhaust from this cylinder is conducted through thepassage 27 formed in the body section 5 of the frontframe casting andthrough a suitable pipe connection to the exhaust nozzle withinthesmokebox of the locomotive. Thus, itwill be understood that a structurein legrally connecting two side frame members is provided with acylindrical steam receiving chamber, and that said frame members extendforwardly and rearwardly from said structure. i One of the importantfeatures of in present improvements resides in the provision of aone-piece saddle or seat 28 for the cylindrical boiler shell at theupper end of the body 5 of the one-piece front frame.

Preferably, though not necessaril I de sign this boiler and smokeboxsadt le as an integral partof the body structure 5 of the frame, and itwill be noted that there is no direct connection of any kind between thecylinders and this boiler and smokebox saddle. Therefore, it will beseenthat I have materially simplified prior structures of this characterof the types hereinbefore referred to so that it becomes possible tomake the separate cylindersof one kind of metal and the locomotive frameand the boiler or smokebox saddle of a different kind of metal:Furthermore, by providing the body structure 5 of the frame as anintegral partof the front frame casting,it is possible to pro videdirect liveand exhaust steam connecting passages "between the cylinderValve Ice chest and the steam exhaust'pipe through i V instance in allcases it may not be found dewithout disturbing in any way the boltingconnecting the saddle with the boiler wall, the bolting between thefront frame and the rear frames, the bolting between the usual halfsaddle type of cylinders, the bolting between the half or full saddletype of cylinders and the front frame sections, or other connections,Thus it is seen that the operation of replacing a failed cylinder isgreatly expedited and it becomes unnecessary to remove the numerousbolts connecting the same with the boiler or smokebox and independentfront frame section which are more orcless diflicult of access. lVhenthe new cylinder has been applied and secured in place by the bolts 28,it is firmly interlocked with the front frame by the lugs 22 seating inthe recesses 21, said interlocking connections also operating to relievethe fastening bolts 23 of shearing strains.

v I have herein described the novel features of my present invention asused in connecto be entirely satisfactory. However, it is' evident thatin the application of my improved front frame to various "differenttypes of locomotives, minor mechanical changes may be found necessary.Thus for sii'able to form the boiler onsmoke boX saddle 28 as anintegral'part of the frame casting, and it will be apparent that insuchinstances this one pi'ec'e saddle for the boiler or smoke box may becast separately and ri idly bolted, keyed and secured upon the upper endof the body section 5 of the frontframe. Similarly, as to the severalother structural parts of my new locomotive front frame, it will bemanifest that the same might be exemplified in numerous other forms, andI accordingly reserve the privilege of adopting all such legitimatechanges in the form, :onstruction and relative arrangement of theseveral detail parts as may be fairly embodied within the spirit andscope of the invention as claimed;

I claim:

1. As a new article of manufacture, a front frame for locomotivesconsisting of a one-piece integral casting including a body having sideand end walls, parallel side frame members extending forwardly from saidbody, parallel extensions projecting rearwardly from said body forconnection with the rear frameof the locomotive, and

a boiler seat saddle integral with the upper ends of said side and endwalls of the frame body. I

2. As a new article of manufacture, a front frame for locomotivesconsisting of a one-piece integral casting including a body having sideand end walls and horizontally disposed reinforcing webs connecting saidside and end walls, said side walls provided with means to receive andsupport the locomotive cylinders, a boiler seat saddle integrallyconnecting said body walls with each other at their upper ends, saidbody having integrally formed rearwardly projecting means for connectionwith the rear frame of the locomotive and being further integrallyformed with forwardly projecting side frame members.

3. As a. new article of manufacture, a front frame for locomotivesconsisting of a one-piece integral structure including 'a body havingside and end walls, parallel side frame members projecting forwardlyfrom said body, and a boiler seat saddle integrally connecting said sideand end walls with each other at their upper ends, said side walls ofthe body adapted to support the locomotive cylinders, and said framebody having a steam passage opening through one of the side andend wallsthereof and adapted for direct connection with the steam chest of one ofthe locomotive cylinders.

l. its a new article of manufacture, a front frame for l comotivesconsisting of a frame body having side and end walls provided at theirupper ends with a boiler receiving saddle, and said frame body havingintegral forwardly projecting side frames and rearwardly projectingintegral parts for connection with the rear frames of the locomotive,the side walls of the frame body adapted to receive and'support thelocomotive cyl nders, and said body having a steam passage openingthrough one of its side and end walls and adapted for direct connectionat one of its ends with the steam chest of one of the locomotivecylinders.

5. As a new article of manufacture, a front frame for locomotivesconsisting of a onepiece' integral casting including a frame body havinga one-piece saddle plate at its upper end to receive a locomotiveboiler, parallel side frames extending forwardly from said body, spacedparallel parts extending rearwardly from said body and in tegrallyconnected with each other at their rear ends, and said body providedwith means on the opposite sides thereof for de tachably supporting thelocomotive cylinders.

' 6. As a new article of manufacture, a front frame for locomotivesconsisting of a one-piece integral casting including a rectangular bodyhaving side and end walls lill) flanged at th eir ripper ends to providea onepiece boiler receiving saddle, integral side frame membersextending forwardly from saidbody, parts integrally formed with saidbody and projecting rearwardly therefrom for connection tothe rearframes of the coinotive, and said body having a steam passage" openingthrough one of its side and eiidwalls and'adapted for direct connectionat one'of its ends'with the steam chest of a Locimotive cylindersupported by said frame 7. As an improved article of manufacture, afront framefor locomotives consisting of a sin le integral member havinga body provide with forwardly extending side frames and rearwardlyextending parallel parts for connection to the forward end of the rearprojecting bumper beam and having at the from onfoppos'ite sidesthereof.

,11 per end thereof a one-piece integral saddle p ate adapted to bebolted to the boiler of a locomotive. I

9. In a locomotive engine of the cylinder type, the combination of asteam receiving member, and inte ral side frame members, extendingforwar ly and rearwardly there- 10. In a locomotive engine of thecylinder type, the combination of'a steam receiving member, an integralb oiler eat saddle ex: tending vertically above said member, integralside frame membersextending forwardly and rearwardly from said steamreceiving member on opposite sides of said steam receiving passage, v NI v 11. In a locomotive engine of the-cylinder type, the combination ofa steam receiving member, integral side frame members extendingforwardly and rearwardly therefrom, on opposite sides thereof, andindependent main frame members, rigidly secured to the rear end portionsof tlieside frame members. v p

12. In a locomotive en ine of the cylinder type, the combination o asteam receiving member, anintegral boiler seatsaddle extendingvertically above said member and adapted to support a boiler, integralside frame members extending forwardly and rearwardly from said steamreceiving member, on opposite sides thereof, and side cylinders securedto said steam receiving member.

' 13,111 a locomotive engine of'the cvlinder.

type, an integral connecting struct ite, compris ng a steam receivingmember, side frame members, extending forwardly and rearwardlytherefrom, on opposite sides thereof, anda boiler seat saddle extendingvertically above the steam receiving member. l4. In a steam locomotive,a one-piece body structure having a steam receiving chamber and integralside frame members extending forwardly and rearwardly from saidstructure on oppositesidesthereof and adapted to be rigidly secured attheir rear ends to the main frame membersof the locomotive. I I 4 n Intestimony thatI claim the foregoing as my invention, I have signed myname her to.

JOHN E. MUHLFELD.

